PVM (Parallel Virtual Machine) is a portable
message-passing programming system, designed to
link separate host machines to form a ``virtual
machine'' which is a single, manageable computing
resource. The virtual machine can be composed of
hosts of varying types, in physically remote
locations. PVM applications can be composed of any
number of separate processes, or components,
written in a mixture of C, C++ and Fortran. The
system is portable to a wide variety of
architectures, including workstations,
multiprocessors, supercomputers and PCs.

SLOCCount is a suite of programs for counting physical source lines of code (SLOC) in possibly large software systems. It can count physical SLOC for a wide number of languages. It can take a large set of files and automatically categorize their types using a number of different heuristics, and also comes with analysis tools.

PLplot is a library of C functions that are useful
for making scientific plots from programs written
in a wide variety of languages. It can be used to
create standard x-y plots, semi-log plots, log-log
plots, contour plots, 3D plots, shade (gray-scale
and color) plots, mesh plots, bar charts, and pie
charts. Multiple graphs may be placed on a single
page with multiple lines in each graph. Different
line styles, widths, and colors are supported. A
virtually infinite number of distinct area fill
patterns may be used. A variety of output devices
and file formats are supported.

The FLASH code is a modular, adaptive, parallel simulation code capable of
handling general compressible flow problems in astrophysical environments. It
has been designed to allow users to configure initial and boundary conditions,
change algorithms, and add new physical effects with minimal effort. It uses
the PARAMESH library to manage a block-structured adaptive grid, placing
resolution elements only where they are needed most. It uses the
Message-Passing Interface (MPI) library to achieve portability and scalability
on a variety of different message-passing parallel computers.

GNU-Darwin aims to be the most free Darwin-based Unix distribution. Our mission is two-fold: focus on new projects that leverage the unique capabilities of Darwin/Mach, and help Apple users to enjoy the benefits of free software.

Dynamic Probe Class Library (DPCL) is an object-based C++ class library that provides the necessary infrastructure to allow tool developers and sophisticated tool users to build parallel and serial tools through technology called dynamic instrumentation. DPCL takes the basic components needed by tool developers and encapsulates them into C++ classes. Each of these classes provide the member functions necessary to interact and dynamically instrument a running application with software patches called probes. Dynamic instrumentation provides the flexibility for tools to insert probes into applications as the application is running and only where it is needed.

RPL/2 (Reverse Polish Lisp/2) is a langage derived from the RPL made by Hewlett-Packard for its HP-28S. It has some extensions (preprocessor, compilated libraries, new functions), a TeX output, and can draw graphics.

This is a collection of old games written in FORTRAN. The makefiles included claim that they are "U/Toronto Games". It includes games like Chess, Scrabble, Bzone, Adventure, and other old classics. These games are very old: chess.f was written around 1978.